Save on bandwidth by generating content on the fly rather than having to visit websites which used their own GenAI to generate content without regard for accuracy as its sole purpose is to attract the attention of real humans which can then be sold via a real-time auction run by another AI (Google ads etc.) to the real customers, who are likewise generating advertising with GenAI and testing which works better via another (A/B, multi-armed bandit, or genetic algorithm).
GenAI on the browser skips the intermediaries and probably loads faster than all the JS needed for 1200 analytics "partners" and reinventing the wheel badly by making it load text on the fly based on your scroll position rather than letting the browser handle it because someone just assumed a few thousand lines must be slow and never stopped to try it.
Plus it being local means it might even work when you have no signal.
GenAI on the browser skips the intermediaries and probably loads faster than all the JS needed for 1200 analytics "partners" and reinventing the wheel badly by making it load text on the fly based on your scroll position rather than letting the browser handle it because someone just assumed a few thousand lines must be slow and never stopped to try it.
Plus it being local means it might even work when you have no signal.